2172517940748 has 24 divisors (see below), whose sum is σ = 5069436035328. Its totient is φ = 724140145936.

The previous prime is 2172517940743. The next prime is 2172517940797. The reversal of 2172517940748 is 8470497152712.

It is not an unprimeable number, because it can be changed into a prime (2172517940741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3783336 + ... + 4319567.

It is an arithmetic number, because the mean of its divisors is an integer number (211226501472).

Almost surely, 2^{2172517940748} is an apocalyptic number.

It is an amenable number.

2172517940748 is an abundant number, since it is smaller than the sum of its proper divisors (2896918094580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2172517940748 is a wasteful number, since it uses less digits than its factorization.

2172517940748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125253 (or 8125251 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 2172517940748 in words is "two trillion, one hundred seventy-two billion, five hundred seventeen million, nine hundred forty thousand, seven hundred forty-eight".